WHA30306189
Whatman® cellulose chromatography papers
3MM CHR, W × L 4 in. × 5.25 in., pkg of 100 ea
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Synonym(s):
Whatman paper, Z742384, blotting papers, cellulose membranes
UNSPSC Code:
41115727
NACRES:
NB.24
Recommended Products
material
cellulose membrane
sheets
grade
for chromatography
sterility
non-sterile
feature
3MM CHR
packaging
pkg of 100 ea
manufacturer/tradename
Whatman 3030-6189
Whatman Article No. 28419270 (US reference)
parameter
130 mm/30 min speed
W × L
4 in. × 5.25 in.
basis weight
185 g/m2
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General description
Grade 1 Chr
The world standard chromatography paper. A smooth surface, 0.18 mm thick with a linear flow rate (water) of 130 mm/30 min. Good resolution for general analytical separations.
Grade 2 Chr
Thickness 0.18 mm. Flow rate 115 mm/30 min. Slower than 1 Chr for higher resolution applications. Smooth surface. Particularly recommended for optical or radiometric scanning.
Grade 3MM Chr
Though widely used as a blotting paper, 3MM Chr is also used both in electrophoresis and for general chemistry. A medium thickness paper (0.34 mm) used extensively for general chromatography and electrophoresis. Flow rate is 130 mm/30 min.
Grade 4 Chr
Thickness 0.21 mm. Flow rate 180 mm/30 min. Fastest of the thin papers. Recommended for routine and/or repetitive chromatography when loadings are relatively low. Smooth surface. Very suitable where speed is important and very high resolution is not required.
Grade DE 81
DEAE cellulose paper. Weakly basic anion exchanger. Thin paper with medium flow rates.
Grade 2668 Chr
Thickness 0.9 mm. Flow rate 155 mm/10 min. For separation of relatively large molecules by electrophoresis.
The world standard chromatography paper. A smooth surface, 0.18 mm thick with a linear flow rate (water) of 130 mm/30 min. Good resolution for general analytical separations.
Grade 2 Chr
Thickness 0.18 mm. Flow rate 115 mm/30 min. Slower than 1 Chr for higher resolution applications. Smooth surface. Particularly recommended for optical or radiometric scanning.
Grade 3MM Chr
Though widely used as a blotting paper, 3MM Chr is also used both in electrophoresis and for general chemistry. A medium thickness paper (0.34 mm) used extensively for general chromatography and electrophoresis. Flow rate is 130 mm/30 min.
Grade 4 Chr
Thickness 0.21 mm. Flow rate 180 mm/30 min. Fastest of the thin papers. Recommended for routine and/or repetitive chromatography when loadings are relatively low. Smooth surface. Very suitable where speed is important and very high resolution is not required.
Grade DE 81
DEAE cellulose paper. Weakly basic anion exchanger. Thin paper with medium flow rates.
Grade 2668 Chr
Thickness 0.9 mm. Flow rate 155 mm/10 min. For separation of relatively large molecules by electrophoresis.
Other Notes
Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.
Legal Information
Whatman is a registered trademark of Cytiva
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Susana Campuzano et al.
Applied and environmental microbiology, 75(18), 5972-5980 (2009-07-28)
A Streptococcus mitis genomic DNA fragment carrying the SMT1224 gene encoding a putative beta-galactosidase was identified, cloned, and expressed in Escherichia coli. This gene encodes a protein 2,411 amino acids long with a predicted molecular mass of 268 kDa. The
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